Shuttle-box for bobbin-changing looms.



J. GABLER.

SHUTTLE BOX FOR BOBBIN CHANGING LOOMS.

APPLICATION FILED NOV. 27, 1907.

Patented June 29, 1909,

a m w e/ WW/ A @w MEnesses JOHANNESYGABLER, or nt'immusnuenmmuv.

SHUTTLE-BOX FOR BOBBIN-CHANGING LOOMS.

Specification of Letters Ilatent.

Patented June 29, 1909.

Application filed November 27, 1907. Swain 404,061.

e To all whom it may concern:

Be it known that I, JoHAyNEs GABLER, engineer, a citizen of the German Empire, residing at Mi'ilhausen, i. Els., Germany,

have invented certain new and useful Improvements in Shuttle-Boxes for Bobbin- Changing Looms, of which the following is a specification.

This invention relates to improvements in shuttle boxes for bobbin-changing looms, and the objects of the invention are to provide for an effective checking of the shuttle from above, and at the same time avoiding the necessity of providing the shuttle box with a front Wall, as also to obtain certain other advantages" as hereinafter mentioned. I attain these objects by the construction as herein described and as illustrated in the accompanying drawing, in which- Figure 1 is a front elevation of my im proved shuttle box, Fig. 2 a plan view of the same, Fig. 3 a transverse section on the line AB of Fig. 1, and Fig. 4 is another transverse section on the line CD of Fig. 1.

In this improved construction the shuttle box is entirely open in front and has a rear wall a providedlwith an opening or passage 1) to permit the automatic bobbin change. At about a right angle to the said rear wall is the bottom piece 0 serving, as customary, as a sliding track for the shuttled. The "front Wall of the box being omitted altogether leaves the shuttle completely clear in front.

The track 0 is provided with one or more low sto s e preventing lateral escape of the shuttle ut Without ofiering such obstruction as would tend to catch the weft thread. The lateral deviation of the shuttle from its regular course is prevented by providing, above said shuttle, a check-bar f swinging on a horizontal transverse pivot h and a spring 9 acting upon the back of the said bar and pressing it against the upper face of the shuttle, the bottom face of the said bar and the said upper face of the shuttle being inclined, and thus resulting, owing to the stress of the s ring 9, in a wedge-action which presses the s uttle against the rear Wall of the shuttle-box, thus preventing lateral movement of said shuttle or deviation from its regular course.

The check bar may also be utilized for at the rear wall of the box a support is in which is a pivot Z on which moves a transversely disposed lever having arms m, n. The end of the front arm m rests upon the bar f and is raised by the latter whenever the shuttle enters the box. The rear arm n of the lever ends in an inclined smooth surface adapted to act by its rocking movement on a roller 1) adjustably secured on the end-of an up'ight arm 0 mounted on the stop-motion r0 1.

From the foregoing it will be ap arcnt that the improved construction is suc that the shuttle will be urged toward the rear Wall a of the shuttle-box by the wedging action resulting from the inclined contacting surfaces of the spring-pressed check-bar or tongue f and the upper face of the shuttle, and owing to the fact that the shuttle-box has an open front there is little or no liability of accidentally catching the thread thereon. Also the checking of the shuttle is eflected by the check bar or tongue f in an effectual and easy manner without jerks,

as a comparatively large surface is utilized 'the shuttle fail to enter the box the stop motion device, controlled from the brake bar f, Will be free to assume its operative position to stop the loom.-

I claim 1. In a loom, the combination of a-shuttle box open in front and having a rear wall providedwvith a passage adapted to permit automatic bobbin change said shuttle box' having a bottom piece adapted to serve as a sliding track for the shuttle, a check bar swinging on a horizontal pivot above the face of the upper edge of the shuttle, and a spring acting upon the said bar, the bottom face of the said bar and the upper face of the shuttle being inclined to provide for a wedging action to urge the shuttle toward said' rear wall.

2. In a loom, the combination of a shuttle box open in front and having a rear wall provided with a passage permitting automatic bobbin change, said shuttle box having a bottom piece adapted to serve as a sliding track for the shuttle, a check bar swinging on a horizontal pivot above the face of the upper edge of the shuttle, a

upper surface of the check bar and the rear 2 10 and a stop-motion-controhing arm provided 1 With a roller engaged by surface, substantially described In testimony whereof I hz-wesigncd my name to this specification in the presence of two subscribing witnesses.

J OHAN RES ABLER.

spring acting upon the said bar, the bottom I face of the said bar and the upper face of i the shuttle being inclined to provide for a Wedging action on the shuttle, a transversely disposed double-armed rocking lever supported on the rear wall of the shuttle box, the front of the said lever touching the i l Witnesses:

A. LIEBERKNEOIIT,

arm ending'in an inclined smooth surface, 7

HENRY NACE:

said inciinecLsrhooth 

